engine doesn't get up to operating temp.100 deg centigrade.only gets half way there

2000 GMC SIERRA
215,000 MILES
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RUCKDRAGON
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  • 1 POST
engine temp only gets halfway to 100 degrees centigrade. changed resorvoir cap changed thermastat replaced fan clutch.does not appear to be losing fluid. on warmer days it gets there,but i can drop temp by running heater on full blast.any ideas would be helpfull. thanks ruck
Jan 17, 2012 at 5:48 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Check and test the coolant temperature sensor-
Jan 17, 2012 at 5:57 PM
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FIXITMR
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  • 9,990 POSTS
so heater is cold on cold days?
Jan 17, 2012 at 6:33 PM
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